Elevators/Lifts

In my map I have an extremely steep area. Id like to put elevators/lifts moving up because I think it would be interesting to fight with and a great gameplay addition. I know how to make elevators, but how can I build them so that they go up and down lets say every 30 seconds?

I lqtm. Elevators are bad because they force players to travel up in groups, leaving others behind. The separate teams greatly and allow the enemy to camp the exit like there's no tomorrow. Oh, and lifts are kinda broken in TF2 - if you jump while the lift starts, it'll go through you and quite possibly get you stuck in places you don't want to be stuck in.

I actually tried elevators in earlier versions of thunderclap, but I didn't like how they don't provide constant elevation (you have to wait for it to come down).

So yes, I speak from experience. I offer two suggestions if you wish to keep the mechanic.

1) Use an elevator that is activated by the player. No one wants to come running to a lift, on fire, to see that they've missed it by a few seconds.

2) Use a 'lift'. This is to say use a trigger_push to push the player up instead of using a func_door to act as an elevator. This is currently what I use because anyone can use it at any time. The only requirement is that the player has to fall into the trigger, or jump into it in order for it to lift them.

Finally, if you are willing to ditch the mechanic, I would suggest changing your layout to accommodate some stairs or ramps instead. I only suggest this because of the ensuing confusion of lifts/elevators that aren't properly explained to the player.

If you want to make an elevator, consider making it a cyclic elevator. Players will get a continuous flow up or down. No waiting time, no having to travel in groups. Probably easier to program too, since it's one continuous movement.